Centrifugal cream-separator.



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Si Hr 2S P. L. KIMBALL.

CENTRIFUGAL CREAM SEPARATOR.

ll'NllTFi @TATS AN PERLEY L. KIMBALL, OF BELLOWS FALLS, VERMONT, ASSIGNOR TO THE VERMONT FARM MACHINE COMPANY, OF BELLOWS FALLS, VERMONT, A CORPORATION OF VERMONT.

CENTRIFUGAL CREAM-SEPARATOB.

Specification of Letters Patent.

Patented July 19, 191%.

l Application filed `April 16, 1917. Serial No. 162,459.

VBellows Falls, in the county of Windham and State of Vermont, have invented a certain new and useful Improvement in Centrifugal Cream-Separators, of which the following is a full, clear, andv exact description.

The object of this invention is to simplify and otherwise improve the construction of cream separators, with special reference to the means for feeding the wholemilk for separation of the cream and discharging the cream and skim milk when separated.

The invention consists in a cream separator bowl having a whole-milk feed tube between which and a surrounding distributer sleeve is formed an annular chamber communicating with the liner or skimmer disks or cones for the separation of the milk constituents, as l will proceed now to explain and nally claim.

ln the accompanying drawings illustrati. ing the invention, in the several figures' of which like parts are similarly designated, Figure 1 is a vertical section of a cream separator bowl. Fig. 2 is a perspective view of the distributer sleeve. Fig. 3 is a bottom plan view of the distributer sleeve. Fig. l is a transverse section of the milk tube and distributer sleeve, the section be-v ing taken substantially in the plane of line A B, Fig. 1. Fig. 5 is a fragmentary top plan view beneath the upper disk.

The bowl base 1 may be of any usual or approvedconstruction. Its combined spindle socketv and whole-milk feed tube 2 is made integral therewith, the upper portion 3 of said tube being tubular and provided with laterally opening slots 4;, and its lower portion separated from the upper by a solid wall 5 and provided with a socket 6 for the driving spindle 7. The base of the feed tube is made concave, as at 8, and merges with the base of the bowl in thevertical shoulder 9. That portion 10 of the exterior of the `feed tube extending from about the tops of the slots l to the concave base, is of less diameter than the upper portion of the tube, in order to form in connection with the distributer sleeve, next described, a single continuous annular milk distributing chamber 11, which extends uninterruptedly around the feed tube. The interior of thefeed tube may be, and preferably is, of

uniform diameter, excepting that at the upper portion or whole-milk inlet the diameter is reduced, as shown in Fig. 1, so as to provide a sort of ring or shoulder which serves to prevent the milk as it flows in from overflowing the top end of the tube.

The distributer sleeve 12 just previously referred to, has an internal diameter throughout of substantially the external diameter of the upper portion of the feed tube, so as to form a substantially tight joint with that portion of the milk tube, and the base 13 of this sleeve is recessed at 14 to continue thechamber, and it is alsorecessed at 15 to form a flange 16 which fits about the shoulder 9 of the base and therewith make a substantially tight joint. This provision of a substantially tight joint at this point also serves to keep the bottom end of the sleeve in a rigidly concentric position relatively to the axis of the bowl. The base of the sleeve is pierced laterally at 17 to form outlets for the milk. This base also is pierced vertically at 18 to engage a pin 19 rising from the base of the bowl in order to fix the location of the sleeve. lf desired, or necessary, the base of the sleeve may be provided with walls 20 adjacent one side of the outlets 17 and cooperating with the base of the bowl to separate the streams of outflowing milk. The exterior of the sleeve is provided with columns 21, one of which may be wider than the others to cooperate with corresponding notches 22 in the liner or skiinmer disks or cones Q3 to insure the proper positioning of these disks or cones in the bowl and to eifect the correct registration of the flow passages 24, the skim milk and the cream being discharged from the bowl in in the bowl form vertical passages for the.

upward How of the incoming whole-milk, which leaves the sleeve at the port openings 17 lwhich are directly in line with the said passages. As Ythe bottom portion of the bowl fills up, the milk rises in these passages 24: and keeps overflowing each successive disk or cone until the bowl is iilled.

As will be seen, the feed tube in the bowl is Avfreev from grooves or channels, the formation of which involvesl extra expense in manufacturing and extra trouble to keep clean, vand the adjacent and contacting surfaces of therfeed tube and the surrounding distributer sleeve are plane and smooth so that the .flow of the milk and cream is not obstructed. 'j Y Variations in Vdetails of construction and j the arrangement of parts are permissible within theinvention as herein explained and claimed. VFor example, the feed tube may be made of'uniform external diameter and the interiorofthe sleeve may be of two diameters.

What l claim is l. 'A separator bowl, having a feed tube of two 'external diameters and a surrounding distributer sleeve of uniform internal diameter, with a continuous unbroken annular chamber between the two.

v2. A separator bowl, having a feed tube, provided with lateral slots, the external diameter of said tube below the tops of said slots being less than the external diameter above said slots, and a surrounding distributer sleeve of substantially uniform internal diameter, whereby an unbroken an? nular chamber is formed between and sleeve. o

A' cream separator bowl, 'having a feed tube rising from its bottom on concave lines and extending upwardly therefrom in pai'- allel lines to a given height and having lateral slots and ending in a topportion of greater diameter than the lower portion, and a distributer sleeve of uniform internal diameter surrounding said feed tube.

fl. A cream separator bowl, having a feed said tube tube rising from its bottom on concave linesv and extending upwardly therefrom iii parallel lines to a given height and having late y'al slots and ending in a top portion of greater diameter than the lower portion and having a. vertical shoulder at its base next to the base of the bowl, and a. surrounding Vdistributer sleeve of substantially uniform internal diameter next to the feed tube and fitting the upper portion of the feed tube snugly and provided with a base flange snugly engaging the shoulder. Y

5. A cream separator bowl, having a feed tube integral with its bottom and having a concave base terminating in a vertical shoulder, said feed tube extending upwardly from its base in parallel lines and provided with lateral slots through which the milk flows into the bowl, and a distributer sleeve hav` ing a base conforming to the base of the feed tube and providedA with aflange to co-` operate withsaid shoulder to. .forma` substantially'tight joint therewith and Aextend- Y ing upwardly into engagement with the up- ^A pei: portion of the feed tube above its lateral slots, a continuous unbroken annular chamber beingformed between the feed tube and its base and-the surrounding sleeve and its base, and lateral openings inthe base of. the sleeve communicating with Y said chamber and opening into the bowl;` Y 4 6. A cream separator bowl, having a feed. tube integral with its bottom and having a concave base terminating in a vertical' shoulder, said feed tube extending upwardly from its base in parallel lines land provided with lateral slots through which themilk flows into the bowl, .and a distributer sleeve hav-` ing a base conforming to the. base of the feed tube and provided with a flange to co-V operate with said shoulder ytoV form a ksubstantially tight joint therewith and extend-A ing upwardly into engagement with the'up.- per portion of the feed tube above its lateral slots and surroundingsaid tube, a' continuous unbroken annular ch'amberloeingfformed by and between the'kadjacent smooth and unbroken walls of the feed V,tube and its'base and the sleeve audits base, and lateral open-V ingsv in the base of the sleeve communicating with said chamber and opening into the bowl, Said bowl having a verticallydisposed pin in its baseandsaidsleeve having a verti` cally disposed hole in its base tocooperate` with the saidpin toV properlyposition the sleeve in the bowl.V i Y Y' l*,

7. A separator b.owl,having a base,`pro vided with an upright shoulder, a feed tube extending upwardly from said base in par-A allellines and having lateral openingsabove its base,` and a surrounding distributer sleeve having a base conforming to the base ofthe feed tube and provided with a flange inengagement with the shoulder, tween the feed tube and the difference in diamete between said tube and sleeve forming a continuous-unbroken yannular milkchamber extendingv from above the lateral openings` in the. feed tube into the base, the base having lateral openings for establishing communication between said chamber and the surrounding-bowl.

8. Ajseparator bowl, having a feed 4tube rising from its base andterminating at said base in concave lines and havinglateral come. munic'ation above its base Vwith theY aftermentioned chambery Va surrounding distributer sleeve having a similar base and v the space bef sleeveproduced by' forming with the feed tube a continuous an- In testimony whereof I have hereunto set nular chamber between the two, the base of my hand this 13th day of April A. D. 1917. the sleeve having lateral openings provided PERLEY L. KIMBALL. with walls extending to the base of the feed Witnesses:

' 5 tube, said openings aiording communiea- J. S. LANGWILL, tion between the chamber and bowl. M. J. PIKE.

Copies of this patent may be obtained for fLve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

